Journal of Jilin University Medicine Edition ›› 2017, Vol. 43 ›› Issue (01): 141-146.doi: 10.13481/j.1671-587x.20170128

Previous Articles     Next Articles

Application of three-dimensional printing stereolithographic models in precise diagnosis for knee injury and formulation of customized treatment plan

ZOU Yun, HAN Qing, XU Xiaolin, YANG Yingying, QIN Yanguo, SHAO Zhuang, WANG Jincheng   

  1. Department of Orthopedics, Second Hospital, Jilin University, Changchun 130041, China
  • Received:2016-09-21 Online:2017-01-28 Published:2017-02-08

Abstract:

Objective: To visually restore the damage scopes and extents of bone and articular surface of the patients with knee joint injury with three-dimensional(3D) printing stereolithographic models, and to provide the reliable basis for diagnosis of the patients with severe arthritis and formulation of customized treatment plan in clinic.Methods: A male patient with traumatic arthritis aged 19 years old was selected. The computed tomography(CT) data of bilateral lower limbs of the patient was collected, and the 3D reconstruction was performed. The stereolithographic models of the ipsilateral and contralateral knee joint bones of the patient in a ratio of 1:1. The selected parameters were compared by computer between the models and bones, and statistic analysis was completed. Based on the preoperative surgical simulation, the individualized treatment plan was formulated. Through the above processes, the size of prosthesis was determined finally, and the total knee arthroplasty(TKA) was completed.Results: There were no statistical differences in the parameters of knee images between the models and bones(P>0.05). During the operation, the damages of distal femur, proximal tibia, and articular surface were highly consistent with 3D-printed models. The size and shape of prosthesis were matched with the patient's bones. The operation duration and amount of bleeding were decreased. The results of short-term follow-up of the patient were satisfactory.Conclusion: 3D printing stereolithographic model owns high precision. It can be used for assisted diagnosis of osteoarthritis and operation simulation, formulating individualized treatment plan and increasing the efficacy of operation.

Key words: traumatic arthritis, three-dimensional printing, stereolithographic model, total knee arthroplasty

CLC Number: 

  • R684